The Best Episodes Written By Denise Hahn

Thony is given a dire ultimatum by Garrett that could compromise her son's access to medical treatment. Arman is tasked with collecting large "donations" for Hayak's daughter's wedding, calling into question his real role within the family. Meanwhile, a rift forms between Fiona and her son, Chris, when a secret is revealed that has major consequences for his future, sending Fiona into a spiral as she tries to find a solution.

As Lou's vision for "Spring Awakening" starts to crumble, Lilette and Robbie feel the weight of responsibility on their shoulders with rehearsals going into overdrive. In reaching out to a student in need of support, Tracey opens up old wounds from her own past. Gwen starts down a destructive path that threatens to disrupt Gordy's attempts at self-control, while Simon takes steps to get closer to Anabelle.

James and the Bunker Hill surgeons attempt to make medical history with the largest chain of internationally paired kidney donations ever, comprised of eight simultaneous organ transplants and 16 surgeries.

The residents try their hardest to impress surgical great Catherine Avery-who also happens to be Jackson's mother-when she arrives at Seattle Grace to perform a groundbreaking transplant surgery; Arizona and Alex find their hands tied with a confidentiality issue when a familiar patient comes into the ER; meanwhile, a love-struck Teddy throws a dinner party for the couples, and Bailey makes a decision regarding her love life